Application written in R (R Core Team 2015). Data retrieved from the JSU CSSE Covid-19 Data Repository (CSSE 2020). Multiple tutorials were used for creating maps (Andersen 2018), (pkgdown 2020), (Moreno and Basille 2018).

Exercise 1

Exercise 2

Exercise 3

Exercise 4

REFERENCES

Andersen, Eric. 2018. “Package ’Maps’.” Web Page. https://cran.r-project.org/web/packages/maps/maps.pdf.

CSSE, JHU. 2020. “CSSEGISandData/Covid-19.” Github Page. https://github.com/CSSEGISandData/COVID-19.

Moreno, M., and M. Basille. 2018. “Drawing Beautiful Maps Programmatically with R, Sf and Ggplot2 — Part 1: Basics.” Web Page. https://www.r-spatial.org/r/2018/10/25/ggplot2-sf.html.

pkgdown. 2020. “Polygons from a Reference Map.” Web Page. https://ggplot2.tidyverse.org/reference/geom_map.html.

R Core Team. 2015. “R: A Language and Environment for Statistical Computing.” Journal Article. http://www.R-project.org.